Water quality testing dissolved oxygen (DO)

The dissolved oxygen analyzer for water quality testing is used to measure the dissolved oxygen in water,

How to detect dissolved oxygen in water? What is dissolved oxygen in water

●LCDLarge screen LCD display

●Chinese/EnglishIntelligent menu operation

●data recording/Curve display/Upload function

●Multiple automatic calibration functions

●manualorAutomatic temperature compensation

●threeGroup relay control switch

●High limit, low limit, hysteresis control

●4-20mA/RS485various, multiple, diverse, a variety ofconnectmethod

●Same interface displayDissolved oxygentemperature、Current, etc

●Can be setPassword protection to prevent accidental operation by non staff members

Method for detecting dissolved oxygen in water, dissolved oxygen in wastewater, dissolved oxygen analyzer, determination of dissolved oxygen in water, dissolved oxygen standard, dissolved oxygen determination of water quality

（1) Measurement range:

Dissolved oxygen:0～25.0mg/L；

Wen Degree:0～50.0℃；

（2) Resolution:

Dissolved oxygen:0.01mg/L；

Wen Degree:0.1℃；

（3) Basic error:

Dissolved oxygen:±1%F·S；

Wen Degree:±0.5℃；

（4）Electrode residual signal: ＜1‰；

（5）Response time (final value)90%）：

＜ 60 seconds at 25 ℃; ＜ 30 seconds at 35 ℃;

（6）Stability:

Under normal pressure and constant temperature, drift<2%F·S；

（7）2 routesCurrent output:

0～20mA (load resistance<1.5K Ω);

4-20mA (load resistance<750 Ω);

20～4MA (load resistance<750 Ω);

（8) Communication output: RS485 Modbus RTU;

（9）threeGroup relay control contacts:

3A 240VAC，3A 28VDC or 120VAC;

（10）Instrument power supply（optional）：

85～265VAC ± 10%, 50 ± 1Hz, power ≤ 3W;

9～36VDC， Power: ≤3W；

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